How to Install a Shutoff Valve
These step-by-step instructions show how to install a shutoff valve in a laundry room to prevent a washer from flooding the home.
Disconnecting the dryer vent from its connection at the wall, and unplug the dryer plug. Disconnect the washer by turning the hot and cold water off at the source. Use a pair of slip-joint pliers to take the hoses off each valve. Before starting the plumbing, shut off the house water at the main using a curb key.
Mark where the connection will go and use a pair of PVC shears to cut into the hot and cold water lines (Image 1). Make sure to have a bucket handy to collect any water left in the lines. Dry off the pipes, then glue in a 'T' adaptor (Image 2).
Install an isolation valve just past the point where the water lines were tapped. Apply glue to the appropriate 90-degree adaptors and then run the new water lines to the washing machine area.
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